---
title: "Delete Duplicate List Values Step"
url: "https://docs.robotiq.ai/en/article/delete-duplicate-list-values-step"
language: "en"
last_updated: "2025-12-24T14:46:12.349Z"
---

# Delete Duplicate List Values Step

The Delete Duplicate List Values step gets rid of all duplicate entries in a list variable. This helps you make a clean list of unique values.

## How to Use Delete Duplicate List Values

Add this step to your process to clean up a list by removing any repeated values.

### Step 1: Add the Step

1.  Drag and drop the **Delete Duplicate List Values** step into your process.
2.  (Optional) In the **Step Name** field, type a custom name for the step.

### Step 2: Set Up Input Parameters

1.  For **Source list variable**, pick an existing list variable that has the values you want to clean.
2.  If your source list variable is a `ListOfString` data type, you will see the **Ignore case** toggle:
    -   Set to **T** (True) to ignore whether letters are capitalized when checking for duplicates (for example, "Apple" and "apple" count as the same). This is the default setting.
    -   Set to **F** (False) to treat "Apple" and "apple" as different values.

### Step 3: Set Up Output Parameters

1.  For **Destination list variable**, pick an existing list variable or make a new one. This variable will hold the list with all duplicate values removed.
2.  For **Element count destination variable**, pick an existing integer variable or make a new one. This variable will hold the total number of unique items in the destination list.
3.  For **Deleted count**, pick an existing integer variable or make a new one. This variable will hold the total number of duplicate items that were removed.

## Parameters Explained

**Step Name** (Optional)

-   A custom name for this step in your process.
-   Example: `Remove Duplicate Product IDs`
-   Use this to make your process easier to understand.

**Source list variable** (Required)

-   The list variable you want to work with.
-   Example: `myProductList`
-   This list will be checked for duplicate values.

**Ignore case** (Required for `ListOfString` variables)

-   This setting controls if the step should care about capitalization when finding duplicates.
-   `T` (True): Ignores capitalization (e.g., "Text" and "text" are duplicates).
-   `F` (False): Considers capitalization (e.g., "Text" and "text" are not duplicates).
-   This setting only shows up if your **Source list variable** is a `ListOfString` type.

**Destination list variable** (Required)

-   The list variable where the unique values will go.
-   Example: `uniqueProductList`
-   This variable will contain the original list's values, but with all duplicates gone.

**Element count destination variable** (Required)

-   An integer variable that will store the number of items in the `Destination list variable`.
-   Example: `uniqueProductCount`
-   This gives you the total number of unique items.

**Deleted count** (Required)

-   An integer variable that will store the number of duplicate items removed from the `Source list variable`.
-   Example: `duplicatesRemoved`
-   This tells you how many duplicate items were found and deleted.

## Related Articles

-   [Add New Element To List Step](https://docs.robotiq.ai/en/article/add-new-element-to-list-step)
-   [Remove Item from List Step](https://docs.robotiq.ai/en/article/remove-item-from-list-step)
-   [Delete Empty Values in List Step](https://docs.robotiq.ai/en/article/delete-empty-values-in-list-step)

## Need Help?

Can't find what you're looking for? Join the [Robotiq Community](https://community.robotiq.ai/home/) to get help from other users and the Robotiq team.

![](https://cdn-assets.productfruits.com/864ce489-e33b-4fc5-948c-676dcf3e63ae)